Merge pull request #88 from ruby/dependabot/github_actions/step-security/harden-runner-2.9.0

Bump step-security/harden-runner from 2.8.1 to 2.9.0

Author: hsbt

.github/workflows/push_gem.yml

@@ -24,7 +24,7 @@ jobs:
     steps:
       # Set up
       - name: Harden Runner
-        uses: step-security/harden-runner@17d0e2bd7d51742c71671bd19fa12bdc9d40a3d6 # v2.8.1
+        uses: step-security/harden-runner@0d381219ddf674d61a7572ddd19d7941e271515c # v2.9.0
         with:
           egress-policy: audit